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4x - 5x + 2x - 1 = 1
4x + 2x - 5x - 1 = 1
6x - 5x - 1 = 1
x - 1 = 1
x = 1 + 1
x = 2
Respuesta.
x = 2
COMPROBAMOS LA SOLUCIÓN
4x - 5x + 2x - 1 = 1
4 (2) - 5 (2) + 2 (2) - 1 = 1
8 - 10 + 4 - 1 = 1
8 + 4 - 10 - 1 = 1
12 - 11 = 1
1 = 1
La solución es correcta!!!